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Potential Hello-World Scraper Botnet Activity

Sigma Rules

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Summary
This detection rule is designed to identify potential scraper botnet activity by monitoring network traffic that utilizes the specific user-agent string 'Hello-World/1.0'. Such botnets typically conduct reconnaissance on web applications and may be indicative of malicious behavior, including automated scraping of data. The rule specifically looks for traffic that utilizes the GET method along with this user-agent, significant because it may highlight unauthorized access attempts or nefarious scraping activities originating from compromised systems or misconfigured proxies. False positives may arise from legitimate network tools or internal scripts, and thus it is advisable to refine alerts based on source IP address filtering where appropriate. Understanding the context of usage is essential for accurate detection and response, especially in environments subjected to legitimate monitoring or testing activities.
Categories
  • Web
  • Network
Data Sources
  • Web Credential
  • Network Traffic
  • Logon Session
Created: 2025-08-02